in tunisia, new protests broke out in the capital, demanding the end of the government. it was the second day of unrest sparked by the killing of a leading opposition figure. we have a report narrated by jonathan rugman of "independent television news." >> reporter: in tunis today, crowds converged on the interior ministry on the same spot where the so-called arab spring began two years ago. "the people want the downfall of the regime" the chant once again. but this time the tear gas came from police loyal not to a dictator but to tunisia's democratically elected government, one which now stands accuse of complicity in political assassination. the victim was chokri belaid, shot outside his home yesterday by a gunman on a motorbike. belaid had appeared on television the night before he died. the s.e.c. tar politician told his interview that tunisia's governing islamist party harbored religious factions which incited violence. his killing prompted the biggest explosion of anger since the revolution itself. groups claiming that revolution had been stolen by islamists who wo